Improvement in well-tubes



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TRISTRAM S. LEIVIS,A OF CHELSEA, MASSACHUSETTS.

l Letters .Patent No. 64,546, dated May 7, 1867.

IMPROVEMENT 1u WELL-TUBES.

TO ALL WHO IT MAY CONCERN:

Be it known that I, TRISTRAM vS. LEWIS, of Chelsea, in the county ofSuifolk, and State of Massachusetts, have invented certain Improvementsin Well-Tubes, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, makingpart of this specification, in which Figure 1 is an elevation of thelower end of a well-tube having my improvements applied thereto.

Figure 2 is aV vertical section through the centre of the same.

Figure 3 is a horizontal section through the same.

Well-tubes which are' forced into the earth tov a sufficient depth toreach water have generally been pro-A vided at their lower endswith astrainer of perforated metal or wire gauze placed around the outside forthe purpose of excluding sand or other substances; this strainer,however, does not fully accomplish the purpose for which it is designed,for when these tubes pass through a stratum of clay it Ais liable to beforced through' the strainer, obstructing the lower end of the tube andrendering it useless. The direct contact and pressure of the sandagainst a wire gauze strainer Vplaced around the 'outside of a welltubealso prevents the water from passing freely into it. A

' My invention has for its object to overcome these diiicultics, andconsists in providing the lower end of the well-tube with one or moreshort perforated tubes passing through it horizontally or inclined at anangle, these tubes being iilled with a substance soluble in water, whichserves to exclude the clay or other substance while the tube 'is beingforced down, the soluble substance being removed, when the well-tube hasreached the required depth, by pouring in hot water or other liquid, soas to leave the short perforated tubes 'free andunobstructed for-thcpassage ofthe water to the main tube. v

'lo enable others skilled in the art to understand and use my invention,I will proceed to describe the manner in which I have carried it out. pg

In the said drawings, A is the lower end of thewell-tube, which isformed in sections screwed together in the ordinary manner. I3 is theboring-tool, whichgis secured to the tube A, and is made square inVcross-section, its corners being notched or cut away at a to facilitateits being turned while passing through hard-pan. I1 is a series of shortperforated tubes or strainers which pass through the main tube A in ahorizontal direction, their ends being secured in place by solder orotherwise, and when the .main tube is in place the wat-er passes freelyinto its lower end through these perforated tubes b, this arrangementenabling me to prevent the direct Contact and pressure of the sandagainst vthe strainers, which tends to prevent the free passage of thewater. Previous to forcing the tube A. into the earth, the tubes I; arelled with hard soap or other suitable substance soluble in water; thisprevents the entrance of' clay or other substance int'o the tubes bwhile the main tube is being forced down, and when the latter hasreached the required depth the tubes b are cleared by pouring hot wateror other liquid down the nua-in tube A, which serves tomeltaand loosenthe soluble material, leaving a free and unobstructed passage for thewater iuto the main tube through the perforated tubes Z2. It is evidentthat if the -well-tube is to be used whore there is no liability ofits-passing through clay, the tubes 6 may be left open instead of being{ill-ed with soap or other substance, without departing from the spiritof my invention." I prefer to fill them, however, as irst described.

The tube A may be provided with any number of these tubes Z1, from oneupwards, as may be found best suited to the purpose; and a well-tube'thus constructed will be found to possess great advantages over thoseheretofore in use. i v

' CZaz'm.

What I claim as my invention, and desire to secure by Letters Patent,is- The tube A, provided with one or more short perforated tubes b,operating substantially as described for the purpose set forth.

TRIS'IRAM S. LEWIS. Witnesses:

P. E. Tascnnimcunn, N. W. Srnnnns.

